| 摘要 |
PURPOSE:To obtain a heat fixing device which can correspond to plural kinds of commercial power source ordinarily used, as it is, by installing a control means for controlling a calorific value by a heating member. CONSTITUTION:A heater 8 is installed in a fixing roller 9 as the heating member. And a fixing heater driving circuit 13 which control the calorific value of the heater 8 to be within a specified range by receiving a signal from a CPU 1 (central processing unit) and a thermo switch 12 which cuts the application of a current when the circuit 13 becomes faulty are connected to the heater 8. Moreover, the control means 1-4, 5 and 7 for controlling the calorific value by the heating member 8 are installed in order to correspond to plural kinds of commercial power sources and to keep the fixing temperature of a fixing device 11. Thus, the device can correspond to plural commercial power sources and also excellent fixing of an image can be possible. |
